src/gtk/taskbar.cpp

   1 /////////////////////////////////////////////////////////////////////////
   2 // File:        src/gtk/taskbar.cpp
   3 // Purpose:     wxTaskBarIcon (src/unix/taskbarx11.cpp) helper for GTK2
   4 // Author:      Vaclav Slavik
   5 // Modified by:
   6 // Created:     2004/05/29
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vaclav Slavik, 2004
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/gtk/taskbarpriv.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/log.h"
  19     #include "wx/frame.h"
  20     #include "wx/menu.h"
  21 #endif
  22
  23 #include <gdk/gdkx.h>
  24
  25 #ifdef __WXGTK20__
  26 #include <gtk/gtkversion.h>
  27 #if GTK_CHECK_VERSION(2, 1, 0)
  28
  29 #include "gtk/gtk.h"
  30
  31 #include "eggtrayicon.h"
  32
  33 wxTaskBarIconAreaBase::wxTaskBarIconAreaBase()
  34 {
  35     if (IsProtocolSupported())
  36     {
  37         m_widget = GTK_WIDGET(egg_tray_icon_new("systray icon"));
  38         gtk_window_set_resizable(GTK_WINDOW(m_widget), false);
  39
  40         wxLogTrace(_T("systray"), _T("using freedesktop.org systray spec"));
  41     }
  42
  43     wxTopLevelWindow::Create(
  44             NULL, wxID_ANY, _T("systray icon"),
  45             wxDefaultPosition, wxDefaultSize,
  46             wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR | wxSIMPLE_BORDER |
  47             wxFRAME_SHAPED,
  48             wxEmptyString /*eggtray doesn't like setting wmclass*/);
  49
  50     m_invokingWindow = NULL;
  51 }
  52
  53 bool wxTaskBarIconAreaBase::IsProtocolSupported()
  54 {
  55     static int s_supported = -1;
  56     if (s_supported == -1)
  57     {
  58         Display *display = GDK_DISPLAY();
  59         Screen *screen = DefaultScreenOfDisplay(display);
  60
  61         wxString name;
  62         name.Printf(_T("_NET_SYSTEM_TRAY_S%d"), XScreenNumberOfScreen(screen));
  63         Atom atom = XInternAtom(display, name.ToAscii(), False);
  64
  65         Window manager = XGetSelectionOwner(display, atom);
  66
  67         s_supported = (manager != None);
  68     }
  69
  70     return (bool)s_supported;
  71 }
  72
  73 //-----------------------------------------------------------------------------
  74 // Pop-up menu stuff
  75 //-----------------------------------------------------------------------------
  76
  77 extern "C" WXDLLIMPEXP_CORE void gtk_pop_hide_callback( GtkWidget *widget, bool* is_waiting  );
  78
  79 extern WXDLLIMPEXP_CORE void SetInvokingWindow( wxMenu *menu, wxWindow* win );
  80
  81 extern "C" WXDLLIMPEXP_CORE
  82     void wxPopupMenuPositionCallback( GtkMenu *menu,
  83                                       gint *x, gint *y,
  84                                       gboolean * WXUNUSED(whatever),
  85                                       gpointer user_data );
  86
  87 #if wxUSE_MENUS_NATIVE
  88 bool wxTaskBarIconAreaBase::DoPopupMenu( wxMenu *menu, int x, int y )
  89 {
  90     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
  91
  92     wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
  93
  94     // NOTE: if you change this code, you need to update
  95     //       the same code in window.cpp as well. This
  96     //       is ugly code duplication, I know,
  97
  98     SetInvokingWindow( menu, this );
  99
 100     menu->UpdateUI( m_invokingWindow );
 101
 102     bool is_waiting = true;
 103
 104     gulong handler = g_signal_connect (menu->m_menu, "hide",
 105                                        G_CALLBACK (gtk_pop_hide_callback),
 106                                        &is_waiting);
 107
 108     wxPoint pos;
 109     gpointer userdata;
 110     GtkMenuPositionFunc posfunc;
 111     if ( x == -1 && y == -1 )
 112     {
 113         // use GTK's default positioning algorithm
 114         userdata = NULL;
 115         posfunc = NULL;
 116     }
 117     else
 118     {
 119         pos = ClientToScreen(wxPoint(x, y));
 120         userdata = &pos;
 121         posfunc = wxPopupMenuPositionCallback;
 122     }
 123
 124     gtk_menu_popup(
 125                   GTK_MENU(menu->m_menu),
 126                   (GtkWidget *) NULL,           // parent menu shell
 127                   (GtkWidget *) NULL,           // parent menu item
 128                   posfunc,                      // function to position it
 129                   userdata,                     // client data
 130                   0,                            // button used to activate it
 131                   gtk_get_current_event_time()
 132                 );
 133
 134     while (is_waiting)
 135     {
 136         gtk_main_iteration();
 137     }
 138
 139     g_signal_handler_disconnect (menu->m_menu, handler);
 140
 141     return true;
 142 }
 143 #endif // wxUSE_MENUS_NATIVE
 144
 145 #endif // __WXGTK20__
 146 #endif // GTK_CHECK_VERSION(2, 1, 0)